Constant-speed transmission case of planetary gear train
A technology for planetary gear trains and transmission boxes, which is applied to gear transmissions, transmissions, transmission parts, etc., can solve the problems of increasing materials, processing, and transmission costs, failing to save input force, and failing to improve transmission efficiency. Reasonable, novel in form and reasonable in structure
Active Publication Date: 2015-01-28
张秘来
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Problems solved by technology
[0002] At present, most of the known gear transmission boxes adopt two parallel shafts for transmission of speed ratio, rotational speed and torque, and those using planetary gear trains are only used to realize speed change, obtain a larger transmission ratio, turn and split transmission, and use Synthesis and decomposition of motion, etc., the increase of output power depends on the reduction of speed, which cannot save input force and improve transmission efficiency. At the same time, the planetary gear is supported by the planetary carrier, which increases the cost of materials, processing and transmission.
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[0011] figure 1 In the specific embodiment shown, 2, 6, and 4 input the planetary gear train, and 3, 7 output the planetary gear train. 2 is an anti-clockwise input wheel (shaft), which drives 6 to rotate clockwise and revolve counter-clockwise. During revolution, it drives 7 to rotate clockwise and revolve counter-clockwise, and 7 drives 3 to rotate counter-clockwise. That is, 3 rotates counter-clockwise under the drive of 2. Because 6 directly rolls and drives 7, 6 and 7 are all directly installed on 2 and 3, so the rotating speeds of 2 and 3 are equal. In order to rotate smoothly and reduce tooth loss, several 6 and 7 can be evenly distributed on the sun gear of the moving shaft, because their structures and performances are the same, so they are not marked in the figure.
[0012] exist figure 2 In the shown embodiment, the pitch circles of 6 are consistent, and in order to better show the meshing with 7, the coincidence is not shown in the figure. In order to ensure t...
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The invention discloses a constant-speed transmission case of a planetary gear train. The transmission case comprises a case body and a transmission mechanism, wherein the transmission mechanism is arranged in the case body and is composed of an input planetary gear train and an output planetary gear train; in the input gear train, a planetary gear is directly mounted on a moving axis sun gear and is internally meshed with a fixed axis sun gear connected with the case body; in the output gear train, a planetary gear is also directly mounted on a moving axis sun gear and is externally meshed with the planetary gear in the input gear train. According to the characteristics of the planetary gears and the mechanics principle, the planetary gears are adopted as execution components, an input point of force which is instantaneous in time and relatively constant in space is selected from the planetary gear in the input gear train to increase an input torque, under the condition that the input linear velocity is equal to the output linear velocity, the input force is saved, and the transmission efficiency is improved. The constant-speed transmission case of the planetary gear train has the remarkable effects of energy conservation and emission reduction, is novel in form, stable and reliable in transmission performance, simple and reasonable in structure and high in practicality, and can be widely applied to mechanical transmission of various power machines (such as internal-combustion engines and generators), transporting machines (such as vehicles and cranes) and processing machines (such as machine tools and packaging machines).
Description
technical field [0001] The invention belongs to a gear transmission box, in particular to a planetary gear train transmission box which saves input force and improves transmission efficiency under the condition of constant input and output speeds. Background technique [0002] At present, most of the known gear transmission boxes adopt two parallel shafts for transmission of speed ratio, rotational speed and torque, and those using planetary gear trains are only used to realize speed change, obtain a larger transmission ratio, turn and split transmission, and use Synthesis and decomposition of operational motion, etc., the increase of output power is exchanged for the reduction of speed, which cannot save input force and improve transmission efficiency. At the same time, the planetary gear is supported by the planet carrier, which increases the cost of materials, processing and transmission. Contents of the invention [0003] In order to change the technical status quo, th...
Claims
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IPC IPC(8): F16H1/28F16H57/023F16H57/08
CPCF16H1/28F16H57/023F16H57/08
Inventor 张秘来
Owner 张秘来